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  • 1
    Electronic Resource
    Electronic Resource
    Relation between laser flux, temperature and ionisation equilibrium in laser produced plasmas (1972)
    Springer
    Space science reviews 13 (1972), S. 584-585 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Laser produced plasmas are a useful source of highly stripped ions for XUV spectroscopy and it is therefore important to understand the relation between the incident laser flux, plasma temperature and ionisation equilibrium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213486
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The gross energy balance of solar active regions (1977)
    Springer
    Solar physics 55 (1977), S. 387-392 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract According to Parker's earlier articles in this journal the photospheric temperature is lower in sunspots than elsewhere because of increased outflow of mechanical energy, rather than inhibited inflow from the convective zone. In this case the atmosphere above the spot group receives an excess supply of energy that must equal the deficiency in radiative power output of the spot group compared with the normal photosphere. The extra power supplied to the atmosphere was then assumed to be lost by radiation. On 26 November 1973 the active region McMath 12628 was studied with sufficient precision to test for this equality. It is shown that the atmosphere did not radiate and almost certainly did not receive, more than a very small part of the ‘missing flux’ of the spot group. This result is an important constraint on the plausible theories of sunspot formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00152581
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The spectrum of Nixix in the solar corona (1976)
    Springer
    Solar physics 46 (1976), S. 171-177 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The wavelengths and intensities of the stronger transitions in the spectrum of Ni xix are reduced from measurements of the X-ray spectra of three coronal active regions. The new measured wavelengths are consistent with prediction by isoelectronic extrapolation from the wavelengths of well established transitions but are about 0.01 Å longer than previously accepted laboratory measurements. This difference appears to be crucial to the correct assignment of features in the coronal spectrum to Ni xix. The relative intensities of our new assignments to Ni xix are in broad agreement with the Loulergue-Nussbaumer calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00157563
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    Paper (German National Licenses)
    Fulltext
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